You have 31 days from your hire date (or from the date you first move into an eligible position) to complete your enrollment for benefits. Whether you enroll on day 1, day 10, or day 31 of your enrollment period, your benefit coverage begins on your date of hire.
If you experience a qualifying life event, you must make any changes within 31 days of your event. See Making Changes Midyear for more details. Otherwise, you can enroll or make changes only during Open Enrollment, which is held each fall.
Review, enroll, or make changes to your benefits in Workday. Visit the Employee Knowledge Base - US Benefits page on Confluence for enrollment instructions.